What is refractive index How refractive index is related with critical angle?

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Tags

1. #light
2. #angle
3. #total
4. #critical
5. #reflection
6. #exceeded
7. #certain
8. #refraction
9. #reflected
10. #determines
11. #internal
12. #index
13. #known
14. #medium
15. #bends
16. #other
17. #refractive